دروس وملخصات الثالثة اعدادي is a free educational app for Android developed by mehdi hicham. The app offers a wide variety of subjects, including geography, history, citizenship, Arabic language, Islamic education, mathematics, physics, chemistry, computer science, French language, industrial technology, and English language for third-year preparatory students. The app contains summaries, lessons, and exercises that cover the entire curriculum for each subject.

The app is an excellent resource for students who want to improve their understanding of different subjects. The app's interface is simple and user-friendly, making it easy for students to navigate and find the information they need. With this app, students can study at their own pace and review the material as many times as they need to fully understand the concepts.